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Copper plasmonic metamaterial glazing for directional thermal energy management

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  • Rui Ma, Beijing University of Posts and Telecommunications
  • ,
  • Dong Wu, Beijing University of Posts and Telecommunications, Peking University
  • ,
  • Yumin Liu, Beijing University of Posts and Telecommunications
  • ,
  • Han Ye, Beijing University of Posts and Telecommunications
  • ,
  • Duncan Sutherland

In recent years, transparent solar technology has attracted increasing attention, which has the potential to let many of the surfaces of our buildings environment be turned into solar harvesting arrays without impacting their function or aesthetics. Glazing with nanostructured surface possessing different solar absorption ability from different directions is studied currently as a route to reduce the environmental cost of keeping appropriate indoor temperature. Here a transparent and solar thermal metasurface based on low cost copper plasmonic nanostructures is proposed and a maximum 25% difference in absorption from different sides is demonstrated experimentally. The spectra show strong activity in the infrared and still have transparency for visible light, which can be further improved by optimizing the structures according to the simulations. These materials are suitable as an alternative design of window glazing for energy saving.

Original languageEnglish
Article number108407
JournalMaterials and Design
Publication statusPublished - Mar 2020

    Research areas

  • Metamaterial, Nanostructure, Plasmonic, Thermal management

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